062- Radio Navigation

Note: The correct answer under (a) during the exam order answers will be different.

Q.1.The quadrantal error of an ADF
a- Is caused by the refraction from the aircraft's fuselage and is compensated for.
b- Is caused by aircraft magnetism and varies with the deviation as shown on the deviation table.
c- Is caused by interference from the sky wave.
d- May be caused by the interference of VOR's within range of the ADF receiver and cannot be compensated for.

Q.2. Inner marker beacons of an ILS transmit at:
a- 75 MHz.
b- 90 Hz..
c- 150 MHz.
d- It depends on the modulating frequency.

Q.3.A TCAS II equipped aircraft will also be equipped with a mode S transponder because:
a- The data link capability of mode S is necessary for the coordination of evasive manoeuvres.
b- True altitude information is obtained via mode S.
c- 3-D position information is transmitted via mode S.
d- The data link capability of mode S is necessary for the exchange of relative position information.

Q.4. The inputs of information used to achieve the RNAV required accuracy may be:
NDB IRS VOR/DME G.N.S.S. The combination regrouping all the correct statements is:
a- 2, 3 and 4.
b- 1, 2 and 3.
c- 1, 2, 3 and 4.
d- 2 and 4.

Q.5. In the NAVSTAR/GPS satellite navigation system, re-use of Selective Availability would give the option to artificially degrade the accuracy by:
a- Dithering the satellite clock
b- Shutting off selected satellites
c- Using a less accurate atomic clock in a satellite for signal processing
d- Offsetting satellite atomic clocks by a predetermined constant amount


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